Machine for operating on parts of boots and shoes



E. E. SABIN July 30, 1929.

Filed Aug. 1, 1924 Patented I J :7 30, 1929;

UNITED STATES PATENT, OFFICE.

ERNEST E. SABIN, BEVERLY,.'MASSACHUSETTS, ASSIGN'OR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING on PARTS or noo'rsann snoEs.

Application filed August 1,1924. Serial No. 729,559.

This invention relates to machines for operating on parts of boots and shoes. As

herein exemplified, the invention is em bodied in a machine constructed and arranged to punch a hole in predetermined relation to the sides and to an end of a short outsole.

In an application for Letters Patent of the United States filed in the name of 10 George E. Warren upon which Letters Patent No. 1,706,504 were granted March 26, 1929, there is disclosed a method for effecting standardization of shoe parts and shoemaking operations characterized in one important aspect by providing units of a shoe with positioning surfaces, such as surfaces formed byjig holes, which are used to control the positions of the units in predetermined relations to various operating instrumentalitie-s and in predetermined relations to each other in making the shoe by procedure which for convenience is frequently termed jigging in said application. According to the method exemplified in that application, the preparation of the outsole includes providing a short outsole having a straight or plane rear end and punching a jig hole in the outsole in predetermined relation to therear end and to .the side edges of the outsole, this jig hole being utilized in positioningthe outsole in predetermined relation to instrumentalities for performing operations on the outsole as well as to position the outsole in predetermined relation to other standardized shoe parts or units.

An important object of the present invention is to provide improved apparatus which will be well adapted for locating a sole accurately, easily and quickly in standardized, predetermined relation to a tool for performing an operation upon the sole, such as the jig hole punching operation above referred to.

A further object of the. invention is to provide such apparatus with gaging devices which will insure that such jig holes shall be arranged in standardized, predetermined relation to the straight ends and lateral edges of short outsoles regardless of the sizes and shapes of the outsoles.

lVith these and other objects in view, the invention in one important aspect provides a machine having a work table and a punch for forming a jig hole near one end of a sole together with gaging devices for-said end and for the sides of the sole which are relatively movable to centralizethe sole with respect to the punch. As herein exemplified, the end and lateral edges of the sole are brought into engagement with abutments or gages which are movable in response to pressure on the sole to centralize it as described. In the embodiment of the invention herein illustrated, a horizontal work table, upon which the shortoutsole rests, is supported for free movement through a substantial are-about a vertical axis substantially corresponding to the axis of the punch or other tool and the positioning of the sole upon Although the invention is herein set forth with particular. reference to its usefulness in punching a jig hole-in predetermined relation to a short outsole especially adapted for use in the practice of the method set forth in the application above referred to, it is to be understood that in various aspects the invention is not limited either to performing such a jig hole punching operation or to operating upon outsoles.

The above and other'features of the invention, including certain combinations and arrangements of parts, will now be set forth in detail in the following description of the preferred embodiment of the invention illustrated in the accompanying drawings and will then be particularly pointed out in v the appended claims.

In the drawings,

Fig. 1 is a front elevation of a part of a well-known machine in which the invention has been embodied,

Fig. 2 is a view in perspective showing the positioning devices to which the invencrank or eccentric on the main driving shaft 22 of the machine.

The sole S is supported upon a work carrier in the form of a flat, horizontal table 24 which in turn rests upon the top of a block 25 projecting upwardly from the platen orbase plate 26 of the machine. Secured to and projecting downwardly from the table is a vertical stud 28 which is rotatable in the block 25. The stud 28 has a vertical hole 30 through it constituting a die in axial alinement with and fitting the punch 10 and this holeis extended through the platen 26 to permit passage of the pills punched from the soles. As illustrated, the stud 28 has a groove 32 around it into which projects a screw 34 threaded through the block 25 to prevent lifting of the stud and work table when the unch is raised. Near the rear end of the table are two fixed pins 36 serving as an abutment for the straight or plane rear end E of the sole S, these pins preferably being a substantial distance apart so as to engage the sole near its opposite sides.

The sole is centralized, or positionedlaterally relatively to the punch 10, by a pair of gage arms 38 pivoted at 40 to the table 24 and having short arms 42 geared together to insure that the two gage arms 38 when moved to or from the longitudinal median line of the table shall move equal distances but in opposite directions. A- spring 44 connects the two gage arms 38 and tends to move them constantly toward their inmost position and into engagement with a sole S when on the table. A stop pin 46 projecting downwardly from the table into the path of movement of one of the arms 42 limits the inward movement of arms 38 when there is no sole on the table. A stripper plate 48 secured to block 25 and having a hole 50 though which the punch 10 moves insures that the punch during its upward movement will withdraw from the jig hole punched in the sole. 1

As fully explained in another application for a sole pressing machine filed by the present applicant upon which Letters Patent No. 1,672,912, were granted June 12, 1928, and also in the Warren application above referred to, as well as in other applications and Letters Patent identified in the latter, the jig hole H is intended to be utilpredetermined relation to instrumentalities for performing various manufacturing operations such as molding or sk'iving, and also to position'the outsole in predetermined relation to other standardized shoe partsprovided with jig holes or other positioning surfaces in the carrying out of procedure which i may be conveniently and in said applications ratus above described insures the formation of such jig holes in this desired relation regardless of the sizes or shapes of the outsoles.

In using the apparatus described, the attendant, while therpunch is raised, places the out-sole S upon the table 24 with its rear end between the forward parts of the gage arms 38 and then pushes the sole rearwardly ox er the table toward the pins 36. The construc tion and arrangement, as shown in Fig. 3, are such that the arms 38 are pressed toward each other by the spring 44 so that they centralize the sole with respect both to the median. line of the table 24 and-to the axis of the stud 28 which is in alinement with the axis of the punch 10.- If, as illustrated by-dotted lines in Fig. 3, the sole should be so placed on the table that the median lines of the sole and table should not coincide, the straight end E of the sole would come into contact with one pin 36 before contacting with the other and the table would automatically turn about the stud 28 due to the continued inward pressure on the sole by the attendant so that the end E of the sole would come quickly and firmly into engagement with the second pin 36, as shown in full lines in Fig. 3, thus insuring an exact, unvarying location of the sole on the table longitudinally, laterally and angularly and likewise insuring a standardized and unvarying location of the hole H with respect to the end and sides of the sole, when the punch 10 is depressed after the sole has been located in the manner described. This turning of the table is of particular importance where, as illustrated, the pins 36 and the end of the sole are largely shadowed or hidden from the eye of the attendant by the block 16, stripper 48, or other parts.

Having thus indicated the nature and scope of my invention and having described in detail apparatus in which it may be embodied, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for operating on soles, the

said axis for operating on a sole, and gaging I devices on the table constructed and arranged to contact with the sole edge at four separated points.

2. In a machine for operating on soles, the

combination of a work ta-ble, means for sup-.

porting the table for free movement through a substantial arc about an axis substantially perpendicular to the work supporting surface of the table, a tool movable toward and from said surface for operating on a sole, and gaging devices on the table constructed and arranged to contact with the sole edge at one side of the sole and also at two separated points adjacent to one end of thesole.

3. In a machine for operating on soles each having a straight end, the combination of a horizontal work table, a vertical stud fixed to the table, a support for the table having a bearing in which said stud is rotatable, a vertically movable cutting tool constructed and arranged to operate on a sole, gaging means to contact with the straight end of a sole at separated points, and a pair of connected gage arms to contact with opposite edges of the sole.

4. In a machine for operating on soles each having a straight end, the combination of a vertically movable tool, a horizontal work table, an abutment fixed to the table for engaging the straight end of a sole near its opposite sides, a pair of connected gage arms pivoted on the table with their free ends extending toward said abutment for engaging opposite side edges of the sole, and a spring tending to move the free ends of said gage arms toward each other for centralizing the sole with respect to the tool.

5. In a machine for operating on soles each having a plane surface and a curved surface in its edge, the combination of a work table, a tool movable substantially perpendicularly to the sole engaging surface of the table, an abutment for engaging said plane surface at laterally separated points, a pair of gage arms for engaging said curved surface, and means normally acting to move said arms toward each other.

6. In a machine for operating on soles each having a plane surface in its edge, the combination of a work table, a tool movable substantially perpendicularly to the sole engaging surface of the table, an abutment for engaging said plane surface at points a sub stantial distance apart, a pair of gage arms extending toward said abutment for engaging opposite side edges of the sole, and means for relatively operating said arms to cause them to centralize the sole with respect to the tool.

7. In a machine for operating upon soles each having a straight end, the combination of a verticallymovable punch for forming a ig hole near one end of-a sole, a horizontal work table freely rotatable through a substantial are about the axis of the punch, and. gaging devices on said table includin an abutment to engage the straight end of the sole at separated points and a'pair of yieldingly-actuated connected arms to engage opposite edges of the sole for centralizing it with respect to the punch.

' 8. In a machine for operating upon soles each having a straight end, the combination of a work table, a punch for forming a jig hole near one end of the sole, and gaging devices on said table including an abutment to engage the straight end of the sole at I separated points near the opposite edges of the sole and a pair of gage arms acting to centralize the sole with respect to the punch by engaging said edges.

9. In a machine for. operating upon soles, the combination of a vertically movable punch for forming a jig hole near one end of a sole, a horizontal work table, and gaging devices on said table including an abutment to engage said end of thesole at separated points and a pair of yieldingly actuated arms engaging opposite edges of the sole for centralizing it with respectztothe punch.

10. In a machind for operating on soles,

the combination of a work carrier, means for supporting said carrier constructed and arranged to permit free movement of the carrier through a substantial are about an axis substantiallyperpendicular to the sole engaging surface of the carrier, gaging means on the carrier for the edge of the sole including an end abutment and a side gage, and a tool movable substantially perpendicularly to said surface for operating on the sole.

11. In a machine for operating on soles, the combination of a punch for forming a jig hole near one end of a sole, a work table,

and gaging devices for said end and for the sides of the sole contacting with the sole at four separated points and relatively movable as the sole is moved over the table toward the punch to centralize the sole with respect to the punch.

12. Ina machine for operating on soles, the combination of a vertically movable punch for forming a jig' hole near one end of a sole, a horizontal work table, and two pairs of gaging devices for said end and for the sides of the sole relatively movable in response to pressure of the sole to centralize the sole with respect to the punch.

13. In a machine for operating on soles, the combination of a punch for forming a jig hole near one end of the sole, a work table, and gaging devices com rising members for engaging the end 0 the sole at of the sole, said'members being relatively movable in response to pressure of the soles to cause the jig holes punched in different soles to be'located in predetermined standardized relation to the rear ends and sides of the soles.

14. In a machine for operating on soles,

the combination of a punch for forming a jig hole near one end of the sole, a work table pivoted for movement about the axis of the punch, and gaging devices comprising members for engaging an'end and the sides of the-sole, said members being rela tively movable in response to pressure of.

the sole to swing said table about its axis to centralize a sole With respect to the punch.

15. In a machine for operating on soles,-

the combination of an operating tool, a Work table, gaging members to engage the side edges of a sole, and abutment means for the rear end of the sole, said abutment means being movable in response to pressure of the sole to bring theabutment means into predetermined relation to the end contour of the sole.

16. In a machine for operating on soles, the combination of a punch for forming a jig hole near the rear end of a sole,' gaging devices for engaging the side edges of the sole, and abutment means for engaging the rear end of the sole at separated points, said abutment means being movable in response to pressure of'the sole to bring the abutment means into engagement with the sole at said separated points.

17. In a machine for operating on soles, the combination of a reciprocating tool, a work table, gaging devices for engaging the v a side gage.

side edges of a sole, and abutment means for engaging one end of the sole, said'abutment'means being movable about an axis passing through the center of the tool i response to pressure of the 'sole.

18. In a machine for operating on soles, a vertically movable punch for forming a jig hole near one end of a sole, a work table for supporting the sole, gaging devices for the side edges of the sole, and abutment means for engaging said end of the sole, the said gaging .devices and the abutment means being mounted to swing about the axis of the punch in response to pressure of the sole to centralize the sole with respect to the punch.

19. A positioning device for a sole with a straight end having, in combination, a Work carrier, gaging means on said carrier constructed and arranged to contact at separated points with the straight end of -a sole and also to contact With the side ed e of the sole, and means for supporting. said carrier constructed and arranged to permit free movement of the carrier through a substantial are about an axis substantially perpendicular to the sole engaging surface ofthe carrier.

20. A sole positioning device having, in combination, a Work carrier, means for supporting said carrier constructed and arranged to permit movement thereof about an axis substantially perpendicular to the sole engaging surface of the carrier, and gaging means on the carrier for the edge of the sole including an end abutment and In testimony whereof I have signed my name to this'specification.

ERNEST E. SABIN. 

